Avoid troublesome algae treatments or costly surface and equipment damage.
The Sutro Water Monitor automatically tests your water 3x/day and gives you exact instructions on how to treat your water so that your pool or spa is always ready.
New pool owners might have a hard time with the term backwashing, but have no fear, backwashing a pool filter is a very straightforward (and needed) procedure that will help you keep your pool water clean and clear.
Sutro will take care of measuring and monitoring the chemicals of your pool water, keeping you thoroughly informed, so all you have to do is relax and enjoy your pool time.
Let’s take a look at the concept of backwashing and the steps to backwash a pool filter.
What is backwashing?
It’s no secret that everything that goes into your pool, sooner or later will pass through your pool filter.
So basically, backwashing is the process of cleaning your pool filter by rinsing out all the grime it has accumulated.
Yes, it sounds gross, but actually backwashing your pool filter is easier than it sounds.
Don’t worry, we’ll get to it.
Why do I need to backwash my pool filter?
After all the hard work your pool filter does to keep your water clean, contaminants accumulate making it less efficient.
It’s important to know that backwashing only works on sand or D.E. filters, so if you have a cartridge type of filter, this information won’t be relevant to you.
As pool water goes through your filter, it absorbs pretty much all dirt, oil or debris particles and starts collecting them in the filter medium. After a considerable amount of time, the filter medium can get clogged, meaning that it will stop being as effective as before.
How to Backwash a pool filter
The methods for backwashing vary depending on the type of pool filter you have.
Backwashing a sand pool filter
To backwash a sand pool filter you’ll only need a backwash hose. Fortunately, there’s no need to remove the sand and the process is quite simple.
- First you must shut the filter system off.
- Then, lock the backwash hose to the filter’s waste port and turn the valve to backwash position.
- Turn the filter system on.
- Let the water run to start the backwashing process. Do this for a few minutes until you notice the water clears out.
- When you’re done, turn the filter system off again and turn the multiport valve to “rinse”.
- Once again, turn the filter system on and let it rinse for about 30-60 seconds.
- Turn the filter system off.
- Finally, turn the multiport valve to “Filter”. And you’re done! Piece of cake, right?
How to Backwash a D.E. Filter
If you one a D.E. filter, you take the following steps to start the backwash process. In this case you’ll also need D.E. powder (Diatomaceous Earth powder).
- Turn off the filter system.
- Attach the backwash hose to the backwash port.
- Set the multiport valve to Backwash and turn the pump on.
- Switch the filter system on, and let it go for a couple of minutes.
- Turn the filter system back off.
- Spin the multiport valve to Rinse. Then, once again turn the system back on,
- This time let it run for at least one minute.
- Turn off the filter system and set the multiport valve back to “Filter”.
- Add D.E. powder to the filter. Refer to your filter’s manual to know how much D:E: powder you must add.
You must add D.E. powder to replace the one that was backwashed. The best place to do this is through the pool’s skimmer.
First, you want to mix the recommended amount with water until you get a wet mud-like texture. Before adding it, make sure to use the skimmer closest to the filter and pump and have the system running. Then, you want to add the mixed D.E. powder directly into the skimmer and the filter will be recharged.
How to dispose backwash water
Now that you’ve properly backwash your pool filter, it’s time to toss backwash water out. However, what is the right place to dispose of it? If you’re thinking about a regular drain, the street or your own yard you may want to think again.
Disposing of filter backwash water can be tricky business, as regulations may vary depending on where you live. The recommended way to go is to collect it and have it discharged in a regulated sanitary sewer. Before you backwash your pool filter, make sure to check with your local water authorities .
How often should I backwash my pool filter?
You must take notice of the normal operating filter pressure. When the pressure gauge of your filter rises above it (whatever your normal levels are), it’s an indication that you need to backwash your filter. Usually these levels are around 8-10 psi over the starting level.
Remember that Sutro is a powerful ally when it comes to your pool’s maintenance. It will automatically test your water, providing treatment recommendations, ensuring your pool water is balanced, thus enhancing the lifespan of your pool’s equipment.